# -*- coding: utf-8 -*-

# Scrapy settings for lagou project
#
# For simplicity, this file contains only settings considered important or
# commonly used. You can find more settings consulting the documentation:
#
#     http://doc.scrapy.org/en/latest/topics/settings.html
#     http://scrapy.readthedocs.org/en/latest/topics/downloader-middleware.html
#     http://scrapy.readthedocs.org/en/latest/topics/spider-middleware.html

BOT_NAME = 'lagou'

SPIDER_MODULES = ['lagou.spiders']
NEWSPIDER_MODULE = 'lagou.spiders'


# Crawl responsibly by identifying yourself (and your website) on the user-agent
USER_AGENT = 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36'

# Obey robots.txt rules
ROBOTSTXT_OBEY = False

# Configure maximum concurrent requests performed by Scrapy (default: 16)
#CONCURRENT_REQUESTS = 32

# Configure a delay for requests for the same website (default: 0)
# See http://scrapy.readthedocs.org/en/latest/topics/settings.html#download-delay
# See also autothrottle settings and docs
DOWNLOAD_DELAY = 6
# The download delay setting will honor only one of:
CONCURRENT_REQUESTS_PER_DOMAIN = 5
#CONCURRENT_REQUESTS_PER_IP = 16
CONCURRENT_ITEMS = 1
CONCURRENT_REQUESTS = 1

# Disable cookies (enabled by default)
COOKIES_ENABLED = False
COOKIES_DEBUG = True

# Disable Telnet Console (enabled by default)
#TELNETCONSOLE_ENABLED = False

# Override the default request headers:
DEFAULT_REQUEST_HEADERS = {
	'Accept':'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8',
	'Accept-Language':'zh-CN,zh;q=0.9,en;q=0.8',
	'Accept-Encoding':'gzip, deflate, br',
	'Host':'www.lagou.com',
	'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.94 Safari/537.36'
}

#duplicate request debug
DUPEFILTER_DEBUG = True
# Enable or disable spider middlewares <engine to spider>
# See http://scrapy.readthedocs.org/en/latest/topics/spider-middleware.html
SPIDER_MIDDLEWARES = {
   'lagou.middlewares.LagouSpiderMiddleware': 543,
}

# Enable or disable downloader middlewares <engine to downloader>
# See http://scrapy.readthedocs.org/en/latest/topics/downloader-middleware.html
DOWNLOADER_MIDDLEWARES = {
   'lagou.middlewares.UserAgentMiddleware':400,
}

# Enable or disable extensions
# See http://scrapy.readthedocs.org/en/latest/topics/extensions.html
#EXTENSIONS = {
#    'scrapy.extensions.telnet.TelnetConsole': None,
#}

# Configure item pipelines
# See http://scrapy.readthedocs.org/en/latest/topics/item-pipeline.html
#ITEM_PIPELINES = {
#    'lagou.pipelines.LagouPipeline': 300,
#}

ITEM_PIPELINES = {
	'lagou.pipelines.JobPipeline':300
}

MONGODB_HOST = '127.0.0.1'
MONGODB_PORT = 27017
MONGODB_DB = 'social_listening'


# Enable and configure the AutoThrottle extension (disabled by default)
# See http://doc.scrapy.org/en/latest/topics/autothrottle.html
#AUTOTHROTTLE_ENABLED = True
# The initial download delay
#AUTOTHROTTLE_START_DELAY = 5
# The maximum download delay to be set in case of high latencies
#AUTOTHROTTLE_MAX_DELAY = 60
# The average number of requests Scrapy should be sending in parallel to
# each remote server
#AUTOTHROTTLE_TARGET_CONCURRENCY = 1.0
# Enable showing throttling stats for every response received:
#AUTOTHROTTLE_DEBUG = False

# Enable and configure HTTP caching (disabled by default)
# See http://scrapy.readthedocs.org/en/latest/topics/downloader-middleware.html#httpcache-middleware-settings
HTTPCACHE_ENABLED = True
HTTPCACHE_EXPIRATION_SECS = 0
HTTPCACHE_DIR = 'httpcache'
#HTTPCACHE_IGNORE_HTTP_CODES = []
HTTPCACHE_STORAGE = 'scrapy.extensions.httpcache.FilesystemCacheStorage'

#是否启用logging
LOG_ENABLED = True

#logging输出的文件名
LOG_FILE = None

#LOG_STDOUT True : 进程所有的标准输出(及错误)将会被重定向到log中
LOG_STDOUT = False

#LOG_LEVEL:CRITICAL、 ERROR、WARNING、INFO、DEBUG
LOG_LEVEL = 'DEBUG'